Grain-screening machine.



PATENTBD JUNE 23, 1908. A. H. BA'ENEN.

GRAIN SCREENING MACHINE.

APPLIOATION FILED NOV. 25, 1907.

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ANTHONY H. BAENEN, OF JAMESTOWN, NORTH DAKOTA.

GRAIN-SCREENING MACHINE.

Specification of Letters Patent.

Patented June 23, 1908.

Application filed November 25, 1907. Serial No. 403,600.

To all whom it may concern:

Be itknown that I, ANTHONY H. BAENEN, of Jamestown, Stutsman county,North Dakota, have invented certain new and useful Improvements in GrainScreening Machines, of which the following is a specification.

The object of my invention is to provide a machine for separating theseeds of grain or screenings from the waste water of a grain washingmachine.

The invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a vertical sectional view of a grain separating machine embodyingmy invention. Fig. 2 is a top View of the same. Fig. 3 is a sectionalview on the line :c0c of Fig. 1.-

In the drawing, 2 represents a drum or casing circular in form having anopen top and a bottom 4 on one side communicating with a discharge spout5. A stuffing box 8 is mounted in the bottom of said drum and a shaft 6passes through said box and is provided at its lower end with a gearwheel 9 meshing with a pinion 10 on a horizontal shaft 11 that isprovided with a driven pulley 12. A hub 13 is secured to the upper endof said shaft by a set screw 14 and is provided with a series of spokes15 radiating from said hub and connected at their outer ends to a rim 16consisting of angle bar iron, with its vertical flange depending withinthe drum and its horizontal flange overhanging the upper edge of thedrum and preventing the waste water from flowing down around the wheelinto the drum. This wheel may be cast if preferred. A wire fabric 17 isstretched across the said wheel and secured thereto, and the waste waterand screenings mixed therewith are discharged through the pipe 18 uponthe screen. With this waste water more or less grain is mixed. Thescreen will revolve slowly from left to right and the material from thespout will thereby be evenly distributed over the screen surface.

To sweep off the screenings and keep the meshes of the sieve clean Iprovide a hub 19 removably secured by a set screw 20 on an upright shaft21 that is geared to the shaft 11 through a beveled gear 22 and pinion23. The hub 19 is provided with a series of brushes 24 which radiatetherefrom in a plane parallel with the sieve, and the brushes with theirshaft are arranged to revolve in the same direction as the sieve, orfrom left to right. The brushes overhang the surface of the sieve and asthe sieve and brushes revolve they will at their meeting point move inopposite directions and consequently the screenings will be swept oflthe sieve on to a plate 25 which is provided on one side of its centerwith a spout 26 into which the screenings fall. A bar 27 on one side ofthe spout is arranged to engage the bristles of the brushes and keepthem clean, scraping off any grain that may cling thereto.

For the purpose of driving the water out of the meshes of the sieve Iprovide a flattened nozzle 28 mounted on a spout 29 and arranged tooverhang the sieve, the spout 29 leading to a blast fan 30 by means ofwhich suitable currents of air can be established through the sieve.

This machine has been found to be very effective for the purpose ofseparating the screenings from the waste water. It is simple inconstruction and easily accessible in all its parts and cannot becomeclogged or choked. The blast of air will drive all the water out of themeshes of the sieve, and the brushes operating thereover will keep thesieve clean and sweep away all the material screened out of the waterinto the spout provided to receive it.

The machine above described may be mounted in a frame or supported on asuitable platform, and can be built in a comparatively small space. Thedepth of the drum may be varied, it being only necessary to increase thenumber of bearings for the vertical shaft 6. The speed of the wheelcarrying the screen is preferably about fifteen revolutions per minute.

I claim as my invention:

1. The combination, with a spout through which waste water andscreenings are discharged, of a horizontal revolving screen arranged toreceive the material from said spout, a revolving brush overhanging saidscreen on one side only and moving thereon to sweep up the screenings,and a spout provided at one side of said screen and over which saidbrush moves to deliver the screenings thereto.

2. The combination, with a revolving circular screen moving in ahorizontal plane, and a spout arranged to deliver waste water andscreenings thereto, a. revolving circular in form, having a dischargespout in its bottom, and an open top, a shaft centrally mounted in saiddrum, a hub mounted on said shaft and having a series of spokesradiating therefrom, a rim composed of angle bar iron secured to saidspokes and having its horizontal flange overhanging the upper edge ofsaid drum, a wire mesh stretched over said spokes and secured theretoand forming a screen, a spout arranged to deliverwaste water andscreenings to said screen, means for revolving said shaft and screen,and a brush moving at one side of said screen.

4. The combination, with a drum having a discharge spout in its bottomand an open top, of a circular revolving sieve moving within the opentop of said drum, a spout arranged to deliver waste water and screeningsto said sieve, a blast fan having a spout and nozzle arranged to directa blast of air through the meshes of said sieve, a revolving brushmoving in a horizontal plane above said sieve and adapted to sweep thescreenings off the surface of said sieve, a plate provided at one sideof said sieve and whereto the screenings are delivered, and a spout overwhich said brush passes and whereto said screenings are delivered by therevolution of said brush.

5. The combination, with a drum or casing having an open top and adischarge spout in its bottom, of a screen circular in form arranged torevolve in the open top of-said drum, a discharge spout arranged todeliver waste water and screenings to said screen on one side of itscenter, a revolving brush overhanging said screen on the other side ofits center and moving in the same direction as said screen whereby theportions of said screen and brush that pass by one another will move inopposite directions, said brush operating to sweep the screenings to theedge of said screen, and a spout over which said brush moves andwhereto'the said screenings are 7. The combination with a revolvingscreen, and a spout arranged to deliver waste water and screeningsthereto, of a revolving brush overhanging one side only of said screen,said brush being adapted to sweep the screenings off the surface of saidsieve, and a blast fan having a spout and nozzle arranged to direct ablast of air through the meshes of said sieve intermediate to the pointwhere said brush engages said sieve and said spout delivers thescreenings thereto.

8. The combination, with a spout through which waste water andscreenings are discharged, of a revolving sieve arranged to receive thematerial from said spout, areceptacle beneath said screen, a s out atone side of said screen, and a revo ving brush arranged to overhang aportion of said sieve and said last named spout and adapted to sweep thescreenings off said sieve into said spout.

In witness whereof, I have hereunto set -my hand this 9th day ofNovember, 1907.

ANTHONY H. BAENEN. Witnesses:

M. F. MULROY, C. J. MANGEARD.

